> Modern physics is never incorrect.
And you, sir, have just turned science into religion.
The whole reason science is superior to religion is that it openly admits that it may be incorrect, and allows for itself to be corrected. It is, as you correctly outline, an iterative process that approaches truth over time. But part of that process is accepting that any truth may be overturned by new evidence. And while Einstein didn't "disprove" Newton, he did show flaws in the theory which meant that it was, in a very small way, wrong. And that's fine. Claiming it was "extended" and not "wrong" is playing semantics and makes you sound like a religious apologist.
The more comfortable we are with being wrong, and the process of refinement, the better scientists we are. The more we claim that some aspect of science is "never incorrect", the more dogmatic we are and the science suffers.
The predictions of modern physics are phenomenally accurate in many domains. But we haven't run tests in nearly enough domains to claim perfection yet. And we've no need to be defensive about it. Science is the only way to the next truth, and that's good enough for me.